Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb34024368b33d2…

MALICIOUS

PDF

31.3 KB Authoring application: Solid Converter PDF
MD5: 8ada4459994d0bf907ec57ee4f8e2769 SHA-1: a5efb1785d313b742d50f244171ba0fa1cb33d3a SHA-256: dbb34024368b33d242162669f9bf6e5f509116e436eed584deae7475ff28967d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm or redirection scheme. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic generation intent. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://pvreiki.com/uploads/1/3/0/7/130776219/jujobi.pdf
    • http://coldwatercollections.com/uploads/1/3/0/4/130477468/8094873.pdf
    • http://myfaraja.com/uploads/1/3/0/2/130270804/16864.pdf
    • http://pivotingdigital.com/uploads/1/3/0/2/130289418/217d24b26.pdf
    • http://mrsscharnhorst.com/uploads/1/3/0/4/130476469/vunigiwawejotifut.pdf
    • http://cgexitmaterials.com/uploads/1/3/0/2/130288722/8898618.pdf
    • http://pellets-nn.ru/uploads/2020/01/28/e2ea43a4.pdf
    • http://occiv.com/uploads/1/3/0/6/130620841/d486df3927a06f.pdf
    • http://mynumba.com/uploads/1/3/0/6/130604826/5803056.pdf
    • http://frugal.group/uploads/1/3/0/7/130740414/6797896.pdf
    • http://thehappygirlstore.com/uploads/1/3/0/5/130588299/130588299.html#big+ideas+math+pre+algebra+worksheets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011ac.bin
879f972a3fcca09f408dc51b24fa36fbead06ae203d01b80b2dd846fc74925fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AC 7884 bytes

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